A. Melting point of elements
B. Boiling point of elements
C. Ionization energy of elements
D. Coordination number of ions
Which one of the following is not a periodic property ? Read More »
Chemistry Mcqs, Periodic Classification A. Boron & Beryllium
B. Nitrogen & Phosphorous
C. Magnesium & Aluminium
D. Gallium & Helium
In which of the following pairs are elements belonging to the same group ? Read More »
Chemistry Mcqs, Periodic Classification A. Same number of electrons in the valence shell
B. Similar physical state
C. Remarkable reducing properties
D. Homovalent (show same valency)
Hydrogen resembles with carbon because of having________________? Read More »
Chemistry Mcqs, Periodic Classification A. Acidic
B. Basic
C. Acidic and basic
D. Neutral and acidic
Amphoteric exides are those which possess ____________ properties? Read More »
Chemistry Mcqs, Periodic Classification A. 2
B. 4
C. 8
D. 7
Modern periodic table has been divided in ___________ blocks? Read More »
Chemistry Mcqs, Periodic Classification A. 2
B. 4
C. 6
D. 8
Seventh period contains _________________ normal elements ? Read More »
Chemistry Mcqs, Periodic Classification A. 6th
B. 7th
C. 2nd and 3rd both
D. 5th
The longest period in the modern periodic table is___________________? Read More »
Chemistry Mcqs, Periodic Classification A. less reactive
B. Zero group elements
C. Having completely filled valence shell
D. All
Noble gases are named so because they are__________________? Read More »
Chemistry Mcqs, Periodic Classification A. Hydrogen
B. Sodium
C. Copper
D. Germanium
Which element was not known when Mendeleev proposed his classification ? Read More »
Chemistry Mcqs, Periodic Classification A. Al-Razi
B. Moseley
C. Dobereiner
D. Democritus
The scientist who did not contribute in the construction of periodic table ? Read More »
Chemistry Mcqs, Periodic Classification